package com.anquing.socket_netty;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
import io.netty.handler.codec.LengthFieldPrepender;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.util.CharsetUtil;

/**
 *客户端初始化Initializer
 *
 * @author wangquanqing
 * @since 2021/7/21 10:15 下午
 */
    public class MyClientInitializer extends ChannelInitializer<SocketChannel> {


        @Override
        protected void initChannel(SocketChannel sc) throws Exception {

            ChannelPipeline pipeline = sc.pipeline();

            pipeline.addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE,0,4,0,4));
            pipeline.addLast(new LengthFieldPrepender(4));
            pipeline.addLast(new StringDecoder(CharsetUtil.UTF_8));
            pipeline.addLast(new StringEncoder(CharsetUtil.UTF_8));
            pipeline.addLast(new MyClientHandler());
        }
}
